Weather & Climate in Tønsberg, Norway
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Tønsberg has a cool climate with an average annual temperature of 45°F (7°C). Winters average 28°F in January while summers reach 63°F in July. Annual precipitation totals 31.5 inches. The area receives 8.7 inches of snow annually. The city sits at an elevation of 52 feet.
Temperature
28°F Jan (-2°C)
63°F Jul (17°C)
| Annual Average | 44.5°F |
| 18% below US avg | |
| January Average | 28°F (-2°C) |
| July Average | 63°F (17°C) |
Geography
| Elevation | 52 ft (16 m) |
| Area | 10.3 sq mi (26.8 km²) |
| Population Density | 5,473/sq mi |
| Coordinates | 59.2675°N, 10.4076°E |
| Timezone | Europe/Oslo |
Precipitation & Snow
Air Quality
Earthquake History
19 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M3.8.
| Feb 19, 1992 | 5 km SE of Fredrikstad, Norway | M3.8 | 35 km | 10 km |
| Nov 19, 1994 | 0 km WNW of Jessheim, Norway | M3.5 | 106 km | 10 km |
| Nov 12, 1993 | 2 km SE of Åmotfors, Sweden | M3.4 | 124 km | 10 km |
| Apr 7, 2004 | 11 km N of Sand, Norway | M3.4 | 150 km | 23 km |
| Nov 29, 2000 | 9 km E of Strömstad, Sweden | M3.4 | 64 km | 10 km |
| May 10, 1994 | 24 km SW of Ellös, Sweden | M3.2 | 142 km | 35 km |
| Nov 27, 1993 | 4 km SW of Sand, Norway | M3.1 | 136 km | 10 km |
| Sep 28, 1993 | 44 km WSW of Grebbestad, Sweden | M2.9 | 76 km | 10 km |
| May 25, 2008 | 4 km WSW of Åneby, Norway | M2.9 | 93 km | 15 km |
| Aug 15, 1991 | 7 km ESE of Stavern, Norway | M2.7 | 35 km | 10 km |
| Aug 22, 1994 | 21 km S of Reinsvoll, Norway | M2.7 | 137 km | 10 km |
| Aug 1, 1994 | 30 km N of Noresund, Norway | M2.7 | 138 km | 5 km |
| Nov 19, 1994 | 7 km NW of Jessheim, Norway | M2.7 | 109 km | 10 km |
| Nov 21, 1994 | 6 km NNW of Jessheim, Norway | M2.7 | 111 km | 10 km |
| Dec 12, 1994 | 8 km S of Rotnes, Norway | M2.6 | 83 km | 5 km |
| Aug 29, 1991 | 43 km W of Smögen, Sweden | M2.6 | 96 km | 10 km |
| Feb 1, 1991 | 5 km SSE of Melsomvik, Norway | M2.6 | 11 km | 10 km |
| Jan 29, 2005 | 7 km NNE of Hvittingfoss, Norway | M2.6 | 35 km | 15 km |
| May 23, 1990 | 50 km WNW of Smögen, Sweden | M2.5 | 81 km | 10 km |
Source: USGS Earthquake Catalog (M2.5+, 1990-2025). Sorted by magnitude.
Tsunami History
1 tsunami recorded within 500 km. Highest wave on record: 6.0 m (20 ft).
| Year | Location | Cause | Max Wave | Deaths | Distance |
| 1966 | EASTERN NORWAY | Meteorological | 6.0 m | - | 39 km |
Source: NOAA/NCEI Historical Tsunami Database.
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 28°F (-2°C) | 2.4 in | Coldest |
| February | 28°F (-2°C) | 1.6 in | Driest |
| March | 34°F (1°C) | 2.2 in | |
| April | 42°F (6°C) | 1.7 in | |
| May | 53°F (12°C) | 1.9 in | |
| June | 59°F (15°C) | 2.3 in | |
| July | 63°F (17°C) | 2.6 in | Warmest |
| August | 61°F (16°C) | 3.0 in | |
| September | 54°F (12°C) | 3.5 in | |
| October | 45°F (7°C) | 4.1 in | Wettest |
| November | 36°F (2°C) | 3.7 in | |
| December | 30°F (-1°C) | 2.5 in |
Tønsberg has a seasonal temperature swing of 35°F / from 28°F in January to 63°F in July. Total annual precipitation is 31.5 inches, with October being the wettest month (4.1") and February the driest (1.6").